7666606544 has 10 divisors (see below), whose sum is σ = 14854050210. Its totient is φ = 3833303264.

The previous prime is 7666606513. The next prime is 7666606567. The reversal of 7666606544 is 4456066667.

It can be written as a sum of positive squares in only one way, i.e., 5818638400 + 1847968144 = 76280^2 + 42988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7666606492 and 7666606501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239581439 + ... + 239581470.

It is an arithmetic number, because the mean of its divisors is an integer number (1485405021).

Almost surely, 2^7666606544 is an apocalyptic number.

It is an amenable number.

7666606544 is a deficient number, since it is larger than the sum of its proper divisors (7187443666).

7666606544 is a wasteful number, since it uses less digits than its factorization.

7666606544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479162917 (or 479162911 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 50.

The square root of 7666606544 is about 87559.1602517978. The cubic root of 7666606544 is about 1971.8220788066.

The spelling of 7666606544 in words is "seven billion, six hundred sixty-six million, six hundred six thousand, five hundred forty-four".